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Hypoglossal Nerve

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https://www.readbyqxmd.com/read/28079432/primary-tumors-of-the-facial-nerve-misdiagnosed-a-case-series-and-review-of-the-literature
#1
Haijin Yi, Bin Hu, Guoping Yin, Xin Li, Jinkun Xu, Jingying Ye, Shi-Ming Yang
CONCLUSION: Unusual primary tumors of the facial nerve should be considered in patients with progressive facial paralysis, especially if this is accompanied by hearing loss or vertigo. Misdiagnosis could increase the difficulties of operation, diminish the chance of facial nerve reconstruction, and increase the likelihood of poor reconstructive outcomes. OBJECTIVE: This paper was to determine the characteristics of facial nerve primary tumors misdiagnosed as tumor-free conditions many years prior, and to describe appropriate treatments...
January 12, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28067182/successful-conservative-treatment-of-an-intracranial-pneumatocele-with-post-traumatic-hypoglossal-nerve-palsy-secondary-to-diffuse-temporal-bone-pneumocele-case-report-and-review-of-the-literature
#2
M A Taube, G M Potter, S K Lloyd, S R Freeman
BACKGROUND: A pneumocele occurs when an aerated cranial cavity pathologically expands; a pneumatocele occurs when air extends from an aerated cavity into adjacent soft tissues forming a secondary cavity. Both pathologies are extremely rare with relation to the mastoid. This paper describes a case of a mastoid pneumocele that caused hypoglossal nerve palsy and an intracranial pneumatocele. CASE REPORT: A 46-year-old man presented, following minor head trauma, with hypoglossal nerve palsy secondary to a fracture through the hypoglossal canal...
January 9, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28051949/stereological-assessment-of-the-total-number-of-hypoglossal-neurons-after-repeated-crush-injuries-to-the-hypoglossal-nerve-in-adult-rats
#3
Nanae Fukushima, Mika Karasawa, Kumiko Yokouchi, Norimi Sumitomo, Kyutaro Kawagishi, Tetsuji Moriizumi
OBJECTIVE: Retrograde neuronal cell death does not occur in mature motoneurons following the axonal injury of peripheral nerves. However, a previous study suggested that retrograde neuronal cell death does occur in adult rats after the creation of double lesions on the hypoglossal (XII) nerve based on a substantial decrease in the number of XII neurons. Using stereological methods, we examined neuronal apoptosis in XII neurons and the total number of XII neurons following repeated crush injuries to the XII nerve...
January 4, 2017: Neurological Research
https://www.readbyqxmd.com/read/28028970/diagnostic-and-therapeutic-difficulties-in-carotid-body-paragangliomas-based-on-clinical-experience-and-a-review-of-the-literature
#4
Karolina Dorobisz, Tadeusz Dorobisz, Hanna Temporale, Tomasz Zatoński, Marzena Kubacka, Mariusz Chabowski, Andrzej Dorobisz, Tomasz Kręcicki, Dariusz Janczak
BACKGROUND: Paragangliomas are rare neuroendocrine tumors, representing 0.03% of all tumors. Half of them develop in the head and neck, and among these 50% are sporadic cervical tumors. OBJECTIVES: The aim of the study was to carry out an epidemiological and clinical analysis of paraganglioma patients diagnosed and treated at the authors' clinics between 1985 and 2014. MATERIAL AND METHODS: The medical data of 47 patients were analyzed. All the patients were qualified for surgery...
November 2016: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28025918/outcomes-of-upper-airway-stimulation-for-obstructive-sleep-apnea-in-a-multicenter-german-postmarket-study
#5
Clemens Heiser, Joachim T Maurer, Benedikt Hofauer, J Ulrich Sommer, Annemarie Seitz, Armin Steffen
Objective Selective stimulation of the hypoglossal nerve is a new surgical therapy for obstructive sleep apnea, with proven efficacy in well-designed clinical trials. The aim of the study is to obtain additional safety and efficacy data on the use of selective upper airway stimulation during daily clinical routine. Study Design Prospective single-arm study. Setting Three tertiary hospitals in Germany (Munich, Mannheim, Lübeck). Subjects and Methods A multicenter prospective single-arm study under a common implant and follow-up protocol took place in 3 German centers (Mannheim, Munich, Lübeck)...
December 1, 2016: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28018501/regional-anesthesia-with-dexmedetomidine-infusion-a-feasible-method-for-the-awake-test-during-carotid-endarterectomy
#6
Jonggeun Lee, Up Huh, Seunghwan Song, Sung Woon Chung, Sang Min Sung, Han Jin Cho
Background: Carotid endarterectomy (CEA) is the standard treatment modality for the prevention of stroke in patients with carotid stenosis. This study reports our experiences during CEA with routine awake tests under regional anesthesia (RA) combined with light sedation by dexmedetomidine infusion. Materials and Methods: We retrospectively reviewed 23 patients who had undergone CEA between April 2013 and June 2015. All patients underwent the awake test during CEA with cervical plexus block and light sedation by continuous dexmedetomidine infusion...
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/28004411/non-chemosensitive-parafacial-neurons-simultaneously-regulate-active-expiration-and-airway-patency-under-hypercapnia-in-rats
#7
Alan A de Britto, Davi J A Moraes
Hypercapnia produces active expiration in rats and the recruitment of late-expiratory (late-E) neurons located in the parafacial Respiratory Group (pFRG) of the ventral medullary brainstem. We tested the hypothesis that hypercapnia produces active expiration and concomitant cranial respiratory motor responses controlling the oropharyngeal and upper airway patency by pFRG late-E neurons disinhibition, but not via synaptic excitation. Phrenic nerve, abdominal nerve (AbN), cranial respiratory motor nerves, subglottal pressure, and medullary and spinal neurons/motoneurons were recorded in in situ preparations of juvenile rats...
December 22, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27996060/highly-variable-penetrance-of-abnormal-phenotypes-in-embryonic-lethal-knockout-mice
#8
Robert Wilson, Stefan H Geyer, Lukas Reissig, Julia Rose, Dorota Szumska, Emily Hardman, Fabrice Prin, Christina McGuire, Ramiro Ramirez-Solis, Jacqui White, Antonella Galli, Catherine Tudor, Elizabeth Tuck, Cecilia Mazzeo, James C Smith, Elizabeth Robertson, David J Adams, Timothy Mohun, Wolfgang J Weninger
Background: Identifying genes that are essential for mouse embryonic development and survival through term is a powerful and unbiased way to discover possible genetic determinants of human developmental disorders. Characterising the changes in mouse embryos that result from ablation of lethal genes is a necessary first step towards uncovering their role in normal embryonic development and establishing any correlates amongst human congenital abnormalities. Methods: Here we present results gathered to date in the Deciphering the Mechanisms of Developmental Disorders (DMDD) programme, cataloguing the morphological defects identified from comprehensive imaging of 220 homozygous mutant embryos from 42 lethal and subviable lines, analysed at E14...
November 15, 2016: Wellcome Open Res
https://www.readbyqxmd.com/read/27929602/facial-reanimation-according-to-the-postresection-defect-during-lateral-skull-base-surgery
#9
John P Leonetti, Sahar Nadimi, Sam J Marzo, Douglas Anderson, Darl Vandevender
The vast majority of benign tumors of the cerebellopontine angle, temporal bone, and parotid gland can be successfully resected without permanent injury to the facial nerve. Malignant tumors or recurrent disease may require facial nerve sacrifice, especially if preoperative facial paresis is present. This article will present case examples of the various methods to reconstruct facial animation after lateral skull base resections that require sacrifice of cranial nerve VII, and the associated mimetic facial musculature...
December 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27913866/communicating-branches-between-lingual-and-hypoglossal-nerve-observation-using-sihler-s-staining-technique
#10
Joe Iwanaga, Koichi Watanabe, Tsuyoshi Saga, Yoko Tabira, Moriyoshi Nakamura, Christian Fisahn, R Shane Tubbs, Jingo Kusukawa, Koh-Ichi Yamaki
PURPOSE: Many dental procedures are at risk of injuring the lingual nerve. We performed this study to better elucidate the microanatomy that exists between the ipsilateral lingual and hypoglossal nerves so that iatrogenic injury can be avoided. METHODS: Adult human cadaveric tongues (ten sides) underwent Sihler's staining to identify the microanatomy between the lingual and hypoglossal nerves. RESULTS: The lingual nerve entered the middle part of the anterior two-thirds of the tongue from its lateral side and divided into two to four thick branches...
December 2, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27906850/isolated-hypoglossal-nerve-palsy-mimicking-a-base-of-tongue-tumor
#11
Daniela Francesca Nestola, Mariangela Lombardi, Matteo Brucoli, Francesco Pia, Paolo Aluffi
Isolated paralysis of hypoglossal nerve is uncommon, generally being associated with other neuropathies. A careful differential diagnosis is necessary to recognize the underlying diseases, some of which can be life-threatening. The authors report a patient of an 80-year-old woman presenting with an isolated hypoglossal palsy, mimicking a tongue neoplasm. Through a careful clinical workup and thanks to the aid of the imaging, it was possible to identify the presence of signal alterations due to a subacute denervation of the affected hemitongue and to exclude the presence of a tumor...
November 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27891029/craniovertebral-junction-360%C3%A2-a-combined-microscopic-and-endoscopic-anatomical-study
#12
Sukhdeep Singh Jhawar, Maximiliano Nunez, Paolo Pacca, Daniel Seclen Voscoboinik, Huy Truong
OBJECTIVES: Craniovertebral junction (CVJ) can be approached from various corridors depending on the location and extent of disease. A three-dimensional understanding of anatomy of CVJ is paramount for safe surgery in this region. Aim of this cadaveric study is to elucidate combined microscopic and endoscopic anatomy of critical neurovascular structures in this area in relation to bony and muscular landmarks. MATERIALS AND METHODS: Eight fresh-frozen cadaveric heads injected with color silicon were used for this study...
October 2016: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/27858088/specific-branches-of-hypoglossal-nerve-to-genioglossus-muscle-as-a-potential-target-of-selective-neurostimulation-in-obstructive-sleep-apnea-anatomical-and-morphometric-study
#13
Philippe Delaey, Jérôme Duisit, Catherine Behets, Thierry Duprez, Pierre Gianello, Benoît Lengelé
PURPOSE: To determine the ideal implantation site for selective tongue neurostimulation in obstructive sleep apnea, anatomy of the distal branching of the hypoglossal nerve (HGN) was revisited. METHODS: The HGN distal course and intramuscular distribution to the tongue muscles were studied in 17 embalmed and 5 fresh heads (age 60-98, BMI 20-35). Medial branches supplying selectively the genioglossus (GG) muscle were identified. Then, the distinct bundles entering the oblique (GGo) and horizontal (GGh) parts of the GG were located...
November 17, 2016: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/27847156/palatal-and-lingual-augmentation-prosthesis-for-patients-with-dysphagia-and-functional-problems-a-clinical-report
#14
Tomohisa Ohno, Ichiro Fujishima
This clinical report describes the treatment of a patient with insufficient tongue movement due to bilateral hypoglossal nerve palsy. A palatal augmentation prosthesis and a mandibular intraoral prosthesis (lingual augmentation prosthesis) were provided for this patient to address his functional dysphagia problems. These problems included insufficient oral to pharynx bolus transportation and displacement of the tongue to the right posterior. The 2 prostheses improved these 2 problems and also the head extension posture during swallowing...
November 12, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27832132/coordinated-respiratory-motor-activity-in-nerves-innervating-the-upper-airway-muscles-in-rats
#15
Satoshi Tachikawa, Kiyomi Nakayama, Shiro Nakamura, Ayako Mochizuki, Takehiko Iijima, Tomio Inoue
Maintaining the patency of the upper airway during breathing is of vital importance. The activity of various muscles is related to the patency of the upper airway. In the present study, we examined the respiratory motor activity in the efferent nerves innervating the upper airway muscles to determine the movements of the upper airway during respiration under normocapnic conditions (pH = 7.4) and in hypercapnic acidosis (pH = 7.2). Experiments were performed on arterially perfused decerebrate rats aged between postnatal days 21-35...
2016: PloS One
https://www.readbyqxmd.com/read/27829262/-upper-airway-stimulation-in-osa
#16
B Bender
Anatomical basis of obstructive sleep apnea (OSA) is the collapse of the pharynx during sleep. It is considered as a result of complex interactions of structural and neuromuscular factors. Depth of sleep and body position have modulating effects. Although different areas of obstruction were identified, studies show that the sleep-mediated obstruction frequently occurs in the base of tongue area.Continuous positive airway pressure (CPAP) is the standard treatment for obstructive sleep apnea syndrome (OSAS) since more than 30 years...
November 2016: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/27801771/asymmetric-acute-motor-axonal-neuropathy-with-unilateral-tongue-swelling-mimicking-stroke
#17
Man Sum Chi, Shi Hon Ng, Lok Yiu Chan
A 60-year-old man presented with acute onset of left hemiparesis and left hypoglossal nerve palsy with ipsilateral tongue swelling. He then progressed to tetraparesis in a few days. Cerebrospinal fluid showed cell protein dissociation. A nerve conduction study showed motor axonal neuropathy with sensory sparing. A subsequent blood test revealed anti-GD1b IgG antibody positivity. He was diagnosed to have acute motor axonal neuropathy (AMAN) and treated with a course of intravenous immunoglobulin with slow improvement...
November 2016: Neurologist
https://www.readbyqxmd.com/read/27767903/neurosurgical-sequelae-of-domestic-dog-attacks-in-children
#18
Ramesh Kumar, Frederic W B Deleyiannis, Corbett Wilkinson, Brent R O'Neill
OBJECTIVE The authors' goals in this study were to describe a series of dog attacks on children that required neurosurgical consultation and to better understand the pattern of injuries inflicted, the circumstances that place children at risk for attack, and the dog breeds involved. In addition, the authors review the surgical and medical management of these patients. METHODS The authors performed a retrospective review of all children requiring neurosurgical consultation for dog bite at a regional Level 1 pediatric trauma center over a 15-year period...
January 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/27762236/nerve-cuff-electrode-using-embedded-magnets-and-its-application-to-hypoglossal-nerve-stimulation
#19
Jungmin Seo, Jee Hye Wee, Jeong Hoan Park, Pona Park, Jeong-Whun Kim, Sung June Kim
OBJECTIVE: A novel nerve cuff electrode with embedded magnets was fabricated and developed. In this study, a pair of magnets was fully embedded and encapsulated in a liquid crystal polymer (LCP) substrate to utilize magnetic force in order to replace the conventional installing techniques of cuff electrodes. In vitro and in vivo experiments were conducted to evaluate the feasibility of the magnet-embedded nerve cuff electrode (MENCE). Lastly, several issues pertaining to the MENCE such as the cuff-to-nerve diameter ratio, the force of the magnets, and possible concerns were discussed in the discussion section...
December 2016: Journal of Neural Engineering
https://www.readbyqxmd.com/read/27734977/parapharyngeal-space-tumours-video-assisted-minimally-invasive-transcervical-approach
#20
F Pilolli, L Giordano, A Galli, M Bussi
The purpose of the present study was to evaluate the advantages of a video-assisted, minimally invasive transcervical approach to benign and malignant parapharyngeal space (PPS) tumours. Ten patients affected by benign and malignant PPS neoplasms underwent a combined transcervical and video-assisted minimally invasive approach, using Hopkins telescopes. We describe the operative technique and perform a review of the literature. Definitive histology revealed 3 pleomorphic adenomas, 2 schwannomas, 2 metastatic papillary thyroid carcinomas, one carcinoma ex pleomorphic adenoma, one cavernous haemangioma and one basal cell adenoma...
August 2016: Acta Otorhinolaryngologica Italica
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